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《CMAJ》1970,103(2):180-181
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《CMAJ》1967,97(21):1294-1296
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Between 1970 and 1976 in the Yorkshire region the incidence of Rh antibodies in Rh-negative pregnant women fell by 70%. This decrease occurred in both old (long-standing) and new (first-affected) cases, which emphasised that the reduction in numbers was as much due to fewer pregnancies among Rh-negative mothers as to administration of anti-D immunoglobulin. Nevertheless, the incidence has begun to level out. The continued incidence of first-affected cases is caused by three main factors: failure of administration of anti-D immunoglobulin after normal deliveries and abortions; a steady incidence of antibodies in primigravidae; and cases in which administration of anti-D immunoglobulin had failed to protect. Administering anti-D antenatally might reduce the incidence of new cases among primigravidae who are sensitised before anti-D is normally given. Even without routine antenatal administration of anti-D, the incidence of severely affected Rh babies in the Yorkshire region could be reduced to one or two isolated cases a year in a population of three to four million by administering anti-D after all Rh-negative deliveries and after every abortion.  相似文献   

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J. M. Bowman  J. Pollock 《CMAJ》1983,129(4):343-345
For two decades the perinatal mortality caused by erythroblastosis has been decreasing in Manitoba. The improved management of Rh-immunized pregnancies has lowered the death rate among affected infants from 10.8% to 3.4%, while the prevention of Rh immunization has reduced its incidence from 9.1 to 2.2 per 1000 total births. In its first 6 years and 8 months Manitoba''s antenatal prophylaxis program, in which immunoglobulin is administered to Rh-negative women at 28 weeks'' gestation, reduced the incidence of Rh immunization during pregnancy by 93%. In combination with post-abortion and postpartum prophylaxis the antenatal treatment has provided a protection rate of 98.6% among primigravidas at risk. Further improvements are expected.  相似文献   

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T F Baskett  M L Parsons 《CMAJ》1990,142(4):337-339
The Rh Programme of Nova Scotia was established in 1964 for the prevention and treatment of Rh(D) alloimmunization. The program''s effectiveness in preventing the condition has been established previously. Because of increasing budget restraint in health care we decided to examine the cost-effectiveness of the program by comparing the cost of prevention (office administration fees, program staff salaries and the price of Rh immune globulin) with the cost of health care services required in addition to standard obstetric procedures and neonatal care in 80 cases of Rh(D) alloimmunization treated from 1982 to 1986. Neonatal intensive care accounted for 80.1% of the additional health care expenses; an extra 512 hospital days for such care constituted 65.7% of the total treatment expense. The cost per case prevented ($1495) was 2.7 times less than the cost per case treated ($3986).  相似文献   

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Rho(D)-Immune Globulin was given to 322 Rh-negative women delivered of ABO-compatible, Rh-positive infants with no apparent failures to suppress Rh sensitization. In contrast, 32 of 305 mothers of a control group made Rh antibody during the six months following delivery. In subsequent pregnancies, 69 women administered RhoGAM had no evidence of isoimmunization after delivery while six of forty mothers of the control study produced anti-Rh. RhoGAM, given within 72 hours of delivery in the amounts employed, was effective for suppression of Rh immunization.  相似文献   

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